40 CFR § 60.2085 - How do I maintain my operator qualification?
To maintain qualification, you must complete an annual review or refresher course covering, at a minimum, the five topics described in paragraphs (a) through (e) of this section:
(a) Update of regulations;
(c) Inspection and maintenance;
(e) Discussion of operating problems encountered by attendees.
The following state regulations pages link to this page.